Phu Kradung Formation
| Phu Kradung Formation Stratigraphic range: Early Cretaceous | |
|---|---|
| Type | Geological formation |
| Underlies | Phra Wihan Formation |
| Overlies | Nam Phong Formation |
| Lithology | |
| Primary | Siltstone and Mudstone |
| Other | Sandstone |
| Location | |
| Region | Northeast Thailand |
| Country | Thailand |
The Early Cretaceous Phu Kradung Formation is the lowest member of the Mesozoic Korat Group which outcrops in Northeast Thailand. This (geology) Formation consists of micaceous, brown to reddish-brown Siltstone beds with minor brown and grey Shale and Sandstone beds. Occasional lime-noduled conglomerate occurs.[1]
The Phu Kradung Formation sediments were deposited in a lake-dominated floodplain cut by meandering and occasionally braided river channels.[2]
The Phu Kradung Formation is considered, on the basis of recent vertebrae fossil discoveries, to be Late Jurassic in age. However, new palynology data suggests an age of Early Cretaceous.[2]
Dinosaur remains have been recovered from this formation, although none have yet been referred to a specific genus.[3]
See also
- List of dinosaur-bearing rock formations
Footnotes
- ↑ Suteetorn and Jarnyahran (1986). "Geological Map of Thailand 1:250,000, Sheet NE 48-14 (Roi Et).
- ↑ 2.0 2.1 Racey and Goodall (2009). "Late Palaeozoic and Mesozoic Ecosystems in SE Asia". Geological Society. London. Special Publication 315 Pp 69-84.
- ↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
References
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.